B-4590 Project Description snip from Pemit Application

2.0 Project Description
The proposed structure will be constructed on the current bridge alignment, with an off -site detour during
construction. The bridge will be lengthened approximately 15 feet, and the area under the new bridge
spans will be graded to match adjacent floodplain wetland elevation and vegetated. The existing bridge
and fender system will be removed using NCDOT Bridge Demolition protocols, and a temporary work
platform will be constructed to access the structure for demolition and construction of the new bridge.
The low steel of the temporary work platform will be equal to or higher than that of the existing bridge.
Existing utilities are present adjacent to the project, but most will remain in place. Minor water line
relocations will be required to construct the project (see attached utility plans). This includes an open
trench relocation of a 12-inch water line. The trench will encroach slightly into the LAMA AEC buffer at
Station 19+65, and tic into the existing line outside jurisdictional streams and wetlands. A Century Link
cable will be bored under Smith Creek at an elevation at least 20 feet below the stream bed. No impacts
to wetlands or open water are anticipated to result from any of the utility relocations.
The US Coast Guard has issued an Advanced Approval of this project, as the current swing bridge
structure is permanently closed. The proposed bridge matches the low chord of the existing structure.